Vulnerability-Lookup

GHSA-R9G3-VG72-X365

Vulnerability from github – Published: 2026-07-19 18:31 – Updated: 2026-07-19 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()

damon_sysfs_memcg_path_to_id() breaks mem_cgroup_iter() loop without calling mem_cgroup_iter_break(). This leaks the cgroup reference. Fix the issue by calling mem_cgroup_iter_break() before the break.

The issue was discovered [1] by Sashiko.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64184"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T16:18:00Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()\n\ndamon_sysfs_memcg_path_to_id() breaks mem_cgroup_iter() loop without\ncalling mem_cgroup_iter_break().  This leaks the cgroup reference.  Fix\nthe issue by calling mem_cgroup_iter_break() before the break.\n\nThe issue was discovered [1] by Sashiko.",
  "id": "GHSA-r9g3-vg72-x365",
  "modified": "2026-07-19T18:31:54Z",
  "published": "2026-07-19T18:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64184"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/082351f9d40007414ad6af062b3a26fa02fd4b5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bd31386ec3b9ccec10c04429948a306ec5897c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/302e02f9ba49f81418ec2a749ae6f5cac1d424e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30a361be33f3793b9ecbd10ab7be6d0564819b79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64184 (GCVE-0-2026-64184)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:41 – Updated: 2026-07-19 15:41

Title

mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break() damon_sysfs_memcg_path_to_id() breaks mem_cgroup_iter() loop without calling mem_cgroup_iter_break(). This leaks the cgroup reference. Fix the issue by calling mem_cgroup_iter_break() before the break. The issue was discovered [1] by Sashiko.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/082351f9d40007414…
https://git.kernel.org/stable/c/30a361be33f3793b9…
https://git.kernel.org/stable/c/302e02f9ba49f8141…
https://git.kernel.org/stable/c/1bd31386ec3b9ccec…
https://git.kernel.org/stable/c/d4e7b5c4cc353f154…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 29cbb9a13f05b20f0777c60db9603730b487a4e0 , < 082351f9d40007414ad6af062b3a26fa02fd4b5f (git) Affected: 29cbb9a13f05b20f0777c60db9603730b487a4e0 , < 30a361be33f3793b9ecbd10ab7be6d0564819b79 (git) Affected: 29cbb9a13f05b20f0777c60db9603730b487a4e0 , < 302e02f9ba49f81418ec2a749ae6f5cac1d424e9 (git) Affected: 29cbb9a13f05b20f0777c60db9603730b487a4e0 , < 1bd31386ec3b9ccec10c04429948a306ec5897c0 (git) Affected: 29cbb9a13f05b20f0777c60db9603730b487a4e0 , < d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9 (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/sysfs-schemes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "082351f9d40007414ad6af062b3a26fa02fd4b5f",
              "status": "affected",
              "version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
              "versionType": "git"
            },
            {
              "lessThan": "30a361be33f3793b9ecbd10ab7be6d0564819b79",
              "status": "affected",
              "version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
              "versionType": "git"
            },
            {
              "lessThan": "302e02f9ba49f81418ec2a749ae6f5cac1d424e9",
              "status": "affected",
              "version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
              "versionType": "git"
            },
            {
              "lessThan": "1bd31386ec3b9ccec10c04429948a306ec5897c0",
              "status": "affected",
              "version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
              "versionType": "git"
            },
            {
              "lessThan": "d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9",
              "status": "affected",
              "version": "29cbb9a13f05b20f0777c60db9603730b487a4e0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/sysfs-schemes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.3",
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                },
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                },
                {
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                }
              ],
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()\n\ndamon_sysfs_memcg_path_to_id() breaks mem_cgroup_iter() loop without\ncalling mem_cgroup_iter_break().  This leaks the cgroup reference.  Fix\nthe issue by calling mem_cgroup_iter_break() before the break.\n\nThe issue was discovered [1] by Sashiko."
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T15:41:06.615Z",
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      "references": [
        {
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9"
        }
      ],
      "title": "mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64184",
    "datePublished": "2026-07-19T15:41:06.615Z",
    "dateReserved": "2026-07-19T07:54:57.039Z",
    "dateUpdated": "2026-07-19T15:41:06.615Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-R9G3-VG72-X365

CVE-2026-64184 (GCVE-0-2026-64184)

Tags

Sightings

Nomenclature